Salain... Ok so lets think about this... If you have a power supply that puts out 850 Watts Max right... You still with me? And one video card = 25 amps...and we known ohms law thats been around for hundred of years is ..... to determine the amount of watts a device uses is. Watts = volts x amps
You still with me Bra...? 120volts x 25 amp = 3000 Watts = Salain is an idiot ! Go on Newegg and find me a powersupply that puts out 3000 watts and maybe will have a valid argument. " What a LAMA"
And there I was, trying to keep it constructive. It's your loss - there is a lot I could teach you if you weren't so afraid of being wrong that you're not willing to listen.